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Twenty-one upgrades have been declared across the Belgian Grand Prix paddock, and the pace of development on the 2026 cars shows absolutely no sign of slowing. Ferrari and Aston Martin are the only teams arriving at Spa-Francorchamps without a single new part — a rare occurrence for Ferrari this season, a very familiar one for Aston Martin.
Haas and Racing Bulls lead the update count with four apiece, and both have packages worth watching closely. Racing Bulls have modified sidepod bodywork, revised the roll hoop inlet, changed the front brake drums for airflow purposes and introduced a new upper rear wing assembly aimed at improving downforce efficiency — none of the four labelled as circuit-specific. Haas, meanwhile, has produced something genuinely unusual: a revised front wing featuring a J-shaped assembly where the nose meets the wing, a design rivals will be studying hard given how distinct it looks under the current regulations. Two of Haas's four changes are also non-circuit-specific.
Mercedes brings three updates, including a tweaked front wing endplate with increased top-edge camber to improve rear airflow and revised rear drum winglets to broaden their performance window, alongside the expected low-downforce rear wing for Spa's long straights. Williams has three changes too — a rear brake duct winglet tweak, a floor trim and a more general floor profile revision that adds volume to the central diffuser section.
McLaren has a new rear wing assembly with an endplate revision, Audi tweaks a diffuser winglet as part of its ongoing aerodynamic programme, and Red Bull revises its pylons to extract more load after already confirming its 'Macarena' wing would not run here. Alpine adds a halo winglet — the only team to do so — while Cadillac makes a front wing adjustment. Follow all the action through our race centre and keep an eye on the championship standings as Mercedes look to extend their 78-point lead over Ferrari heading into Round 10.